Paper Title :Enhanced Photosensitivity in 248nm KrF and 193nm ArF Excimer Laser Irradiated Germanosilicate Fiber
Author :Dinusha S. Gunawardena, Man-Hong Lai, kok-Sing Lim, Harith Ahmad
Article Citation :Dinusha S. Gunawardena ,Man-Hong Lai ,kok-Sing Lim ,Harith Ahmad ,
(2015 ) " Enhanced Photosensitivity in 248nm KrF and 193nm ArF Excimer Laser Irradiated Germanosilicate Fiber " ,
International Journal of Advances in Science, Engineering and Technology(IJASEAT) ,
pp. 15-18,
Volume-3, Issue-2
Abstract : In this study, we have a demonstrated a new technique to enhance the photosensitivity of germanosilicate fiber
based on KrF excimer laser irradiation prior to grating inscription process. Fibers treated with 248nm KrF excimer laser
provides a two times higher refractive index change compared to the untreated optical fiber. The increment of the 193nm UV
absorption band with KrF excimer laser irradiation which is associated with the germanium related oxygen deficient centers,
is believed to be the reason for the enhancement of the photosensitivity with 193nm ArF excimer laser irradiated fiber Bragg
gratings.
Keywords- Bragg Gratings, Photosensitivity, 248nm KrF Excimer Laser, 193nm ArF Excimer Laser
Type : Research paper
Published : Volume-3, Issue-2
DOIONLINE NO - IJASEAT-IRAJ-DOIONLINE-1992
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Copyright: © Institute of Research and Journals
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Published on 2015-04-27 |
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